Method and apparatus for automatically switching between analog and digital input signals
First Claim
Patent Images
1. A system comprising:
- a. a television, including a video display, a first analog input jack, a first digital communication jack, a second analog input jack, and a second digital communication jack;
b. a first video source connected to the first analog input jack via a first analog channel and to the first digital communication jack via a first digital channel; and
c. a second video source connected to the second analog input jack via a second analog channel and to the second digital communication jack via a second digital channel.
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Abstract
An entertainment system includes a digital television connected to a number of audio/video input devices. The television and at least two of the input devices support analog legacy communication schemes. The television is adapted to uniquely identify the analog output channels from each of the input devices. Uniquely identifying the analog output channels from each input device enables the television to automatically select the correct device output from among the numerous possibilities. This automation relieves the user of having to manually select the correct analog channel.
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Citations
26 Claims
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1. A system comprising:
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a. a television, including a video display, a first analog input jack, a first digital communication jack, a second analog input jack, and a second digital communication jack;
b. a first video source connected to the first analog input jack via a first analog channel and to the first digital communication jack via a first digital channel; and
c. a second video source connected to the second analog input jack via a second analog channel and to the second digital communication jack via a second digital channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system comprising:
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a. a first signal source having a first analog-signal port, a first digital-signal port, and a first unique signal-source identifier; and
b. a receiver having;
i. a first analog input channel connected to the first analog-signal port;
ii. a second analog input channel; and
iii. memory having a first device field storing the first unique signal-source identifier;
iv. wherein the receiver associates the first device field with the first analog input channel. - View Dependent Claims (11, 12, 13, 14, 16, 17, 18)
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15. The system of claim 15, wherein the memory further comprises a first analog-plug identification field associated with the first device field and adapted to store the first unique analog-input-channel identifier.
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19. A method of uniquely identifying an analog channel associated with a signal source having a digital port connected to a receiver and having an analog port connected to one of a plurality of analog input jacks on the receiver, the method comprising:
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a. receiving a digital signature uniquely identifying the signal source;
b. storing the digital signature;
c. selecting a first one of the analog input jacks;
d. determining whether any analog signal from the first analog input jack is from the signal source; and
e. if the analog signal from the first analog input jack is from the signal source, associating the first analog input jack with the digital signature; and
f. if the analog signal from the first analog input jack is not from the signal source, selecting a second one of the analog input jacks. - View Dependent Claims (20, 21, 22)
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23. A system comprising:
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a. a first signal source having a first analog channel, a first digital channel, and a first unique identifier; and
b. a receiver having;
i. a first analog input jack having a first plug identifier, the first analog input jack connected to the first analog channel;
ii. a second analog input jack having a second plug identifier;
iii. a first digital communication jack connected to the first digital channel; and
iv. a memory storing the first unique identifier and associating the first unique identifier with the first plug identifier. - View Dependent Claims (24)
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25. A system comprising:
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a. a first signal source having a first analog channel, a first digital channel, and a first unique identifier; and
b. a receiver having;
i. a first analog input jack connected to the first analog channel;
ii. a second analog input jack;
iii. a first digital communication jack connected to the first digital channel; and
iv. means for logically associating the first unique identifier with the first plug identifier. - View Dependent Claims (26)
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Specification